Comparing the two TLC runs on the three compounds together (runs #1 and #2), you should have noticed that in one case, one compound eluted in "first place" while in the other run, a different compound eluted in first place. Suggest a reason why this might occur.

indium, and thallium have three electrons i think

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".